Clamp



Oct. 11, 1932.

N. c. PAYNE 1,882,297

CLAMP Filed June 8. 19251 INVENTOR. 4 0? w t C. @102 ATTORN Y.

Patented Oct. 11, 1932 UNITED STATES NORVAL C. PAYNE, F DETROIT, MICHIGAN CLAMP Application filed June 8, 1931. Serial No. 542,817.

My invention relates to a new and useful improvement in a clamp adapted particularly for use in applying pressure to bodies for effecting a twisting strain on the same and particularly adapted for use on door jams or the like in order to straighten the same after warping.

It is an object of the present invention to provide a pair of offset engaging members so that when the screw of the clamp is oper ated, a twisting strain may be given to the body against which the pressure is applied.

Another object of the invention is the provision of a clamp of this class which Wlll be simple in structure, economical of manufacture, and highly efiicient in use.

Another object of the invention is the provision in a clamp of this class of an engagement member having an inclined surface whereby upon a twisting strain being exerted on the body engaged, a disengagement of the clamp therefrom will not be eflected. Other objects will appear hereinafter. The invention consists in the combination and arrangement of parts hereinafter described and claimed. 7

The invention will be best understood by a reference to the accompanying drawing, which forms a part of this specification, and in which,

Fig. 1 is a side elevational view of the invention, with a part broken away.

Fig. 2 is a front elevational view of the invention.

having the angularly turned end 8 Which is provided with the threaded bore 9 extended through the end and in which is threaded the screw 10 carrying the swivelly mounted engagement button 11. A handle 12 is pro vided at the opposite end of the screw 10. Extending slightly outwardly from the base of the body 7 is an engagement boss 13 which extends laterally from opposite sides of the member 7 as clearly shown in Fig. 2 and which is provided with the inclined engagement surface 14 which inclines downwardly toward the body 7. This engagement boss 13 is inwardly offset from the axis of the screw 10 and it is this offset structure which The invention consists of a main body 7 renders the clamp particularly efficient in straightening door jambs which have become warped o'r twisted or in other uses where it is desired to transmit a twisting strain or pressure by a device of this'kind.

In use, when the inclined engaging surface 14 is engaged with one edge of the door jambs, which is also generally formed inclined, a pressure on the studding may be exerted through screwing the screw 10, this 9 effecting a twisting strain on the door jamb so as to bring it into its former or nonwarped position. This makes it possible in the building art to construct door jambs with a minimum expense and maintain the jamb always in proper alignment when faced.

The inclined engagement surface-14 also prevents the slipping of the boss 13 from engagement with the door jamb.

The body 7 with the angularly turned end may be considered as an L shaped body, the portion 8 serving as the base thereof, and the portion 7 forming the leg of the L shaped structure.

While I have illustrated and described the 7 preferred form of construction of my invention, I do not wish to limit myself to the precise details of structure shown, but desire to avail myself of such variations and modifications as may come within the scope of the 30 appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: p

1. A clamp of the class described, comprising: a body; an angularly turned end on said body; a screw threaded through said end; and an engagement member on the 0pposite end of said body out of alignment with said screw, said engagement member" having an engagement face inclined toward the longitudinal axis of said body and engagement face inclined toward the longitudinal axis of said body, said engagement member porj-ecting outwardly from opposite sides of said body and directed inwardly of, and downwardly toward said opposite end of, said body.

In testimony whereof I have signed the foregoing specification.

NORVAL G. PAYNE. 

